~$ az vm image list --output tsv | head -n 7
You are viewing an offline list of images, use --all to 
retrieve an up-to-date list
CentOS  OpenLogic   7.5 OpenLogic:CentOS:7.5:latest CentOS  latest
CoreOS  CoreOS  Stable  CoreOS:CoreOS:Stable:latest CoreOS  latest
debian-10   Debian  10  Debian:debian-10:10:latest  Debian  latest
openSUSE-Leap   SUSE    42.3    SUSE:openSUSE-Leap:42.3:latest  openSUSE-Leap
RHEL    RedHat  7-LVM   RedHat:RHEL:7-LVM:latest    RHEL    latest
SLES    SUSE    15  SUSE:SLES:15:latest SLES    latest
UbuntuServer    Canonical   18.04-LTS   Canonical:UbuntuServer:18.04-LTS:latest  UbuntuLTS   latest
 
~$ az vm image list --output tsv 2>/dev/null | \ 
      awk '/Ubuntu/{print $(6)}'
Ubuntu2204
